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php基础教程学习总结

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Release: 2016-06-13 09:15:37
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php基础教程——学习总结

一、php和表单

1.POST方法手动发送数据:

二者部分区别:

GET:

1.将信息聚集起来作为URL一部分传送

2.传送数量有限

3.公开传送,诸如密码信息会暴露

4.创建的表单可以添加为书签。

POST:

1.传递的信息用户看不到


用法示例:

html文件:ws.html

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
<title>test</title>
<body> 



</body> 
</html> 
Copy after login

php文件:handle.php

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
<title>test</title>
</head> 

<body>&#160;
Copy after login
Copy after login
<?php

ini_set(&#39;display_errors&#39;, 1);
error_reporting(E_ALL|E_STRICT);
http://blog.csdn.net/u014761420/article/details/<strong><span style="color:#ff0000;">$title=$_POST[&#39;title&#39;];
$name =$_POST[&#39;name&#39;];</span></strong>

print "<p> hello <span style="color:#ff0000;">$title $name</span>";
?>
</body> 
</html> 
Copy after login
输入:myname

结果:hello Mr myname

2.GET传送数据

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
<title>test</title>
<body> 

<ul>
 <li><span style="color:#ff0000;">"handle.php?name=Charles</span></strong>">Charles</li>
</ul> 


</body> 
</html> 
Copy after login

php文件:handle.php

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
<title>test</title>
</head> 

<body>&#160;
Copy after login
Copy after login
<?php

ini_set(&#39;display_errors&#39;, 1);
error_reporting(E_ALL|E_STRICT);

http://blog.csdn.net/u014761420/article/details/<strong><span style="color:#ff0000;">$name=$_GET[&#39;name&#39;];
print "<p> hello $name";</span></strong>
?>
Copy after login
</body> 
</html> 
Copy after login


二、相关函数学习

1.格式化数值:

round(要格式化的数字 , 保留小数点位数);

eg:$test=5.555555555; round(test, 2); // 5.55

number_format(数字, 小数点位数, 代替小数点的符号, 千位分隔符)

eg:number_format("10000000", 2 ,"," ,".");// 10.000.000,00

2.随机函数rand()

eg:rand(0, 100);//产生0-100 随机一个数


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